I've seen some comments in previous pages regarding the MQ that I want to address. To assume that the dragons will remain the sigular focus of the main quest is ignorant. Keep in mind there is a civil war happening and at some point you will most likely have to deal with it. Additionally, it's possible that the dragons are a red herring and not actually the main threat. For all we know, they're running from something too. Possible Alduin has already destroyed their land and is coming for Tamriel next. Or maybe a daedric prince is using Alduin as a front.
The fact is, grandiose elements can lead to subtle story elements and meaningful choices. It's good to keep in mind we know the outline of the story, not the details or plot points.
I for one am looking forward to seeing what kind of civil war shenanigans will be brewing.
Good points, I'm glad you've pointed it out since most people around here didn't seem to notice it.
I for one hope (very much) that the main threat is not the dragons, or that there's someone working in the background and plays with everyone as chess pieces.